Write one main difference between asexual and sexual mode of reproduction. Which species is likely to have comparatively better chances of survival – the one reproducing asexually or the one reproducing sexually? Give reason to justify your answer.
CBSE DELHI - OUTSIDE DELHI - FOREIGN SET 2 2018
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- In asexual reproduction, only a single parent is involved, which divides and gives rise to new individuals. These individuals are exactly identical to the parent organism, and hence, there is a minimal change in their genetic constitution.
- In sexual reproduction, two different parents are involved. Both parents produce two different kinds of gametes which fuse to give rise to a new individual. Because of the fusion of gametes, the new individual has a different genetic constitution and does not entirely resemble the parents.
- Organisms which reproduce by sexual reproduction comparatively have better chances of survival than those reproducing asexually. This is because sexual reproduction involves the fusion of two different types of gametes obtained from two different individuals. This result in genetic recombination leads to a greater genetic diversity, and thus, better chances to adapt, escape or evolve through selection pressure of nature.
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